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Finding the Fourth Proportional to 453,676.80, 680,320.80 and 187,348.80

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Solution

The fourth proportional to 453,676.80, 680,320.80 and 187,348.80 is: 280,942.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,676.80 : 680,320.80 = 187,348.80 : x
  2. Step 2: Convert to fraction form
    453,676.80/680,320.80 = 187,348.80/x
  3. Step 3: Cross multiply
    453,676.80x = 680,320.80 × 187,348.80
  4. Step 4: Simplify right side
    453,676.80x = 127,457,285,495.04
  5. Step 5: Solve for x
    x = 127,457,285,495.04/453,676.80
  6. Step 6: Final answer
    x = 280,942.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.